<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
</head>
<body>

<form action="/doAdd" method="post">
    用户名: <input type="text" name="username"/>
    <br/>
    <br/>
    密　码: <input type="password" name="password"/>
    <br/>
    <br/>
    <button type="submit">提交</button>
</form>

</body>
</html>